| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | be sure when | 21 |
|
| 2 | [be] sure when | 21 |
|
| 3 | [be] sure when | 21 |
|
| 4 | [am/are] sure when | 11 |
|
| 5 | 'm sure when | 10 |
|
| 6 | be sure when | 8 |
|
| 7 | [be] sure when | 8 |
|
